2005 Alfa Romeo GT vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo GT. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo GT would be higher. At 1,745 cc (4 cylinders), 2005 Alfa Romeo GT is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo GT (138 HP @ 6300 RPM) has 48 more horse power than 2007 Opel Astra. (90 HP @ 5600 RPM). In normal driving conditions, 2005 Alfa Romeo GT should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo GT weights approximately 70 kg more than 2007 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Alfa Romeo GT (163 Nm @ 3900 RPM) has 38 more torque (in Nm) than 2007 Opel Astra. (125 Nm @ 4000 RPM). This means 2005 Alfa Romeo GT will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2005 Alfa Romeo GT | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | GT | Astra |
| Year Released | 2005 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1745 cc | 1364 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 90 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 163 Nm | 125 Nm |
| Torque RPM | 3900 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 73.4 mm |
| Engine Stroke Size | 82.7 mm | 80.6 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1300 kg | 1230 kg |
| Vehicle Length | 4310 mm | 4260 mm |
| Vehicle Width | 1770 mm | 1760 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2610 mm | 2620 mm |
| Fuel Tank Capacity | 63 L | 52 L |
